If you are following along from the last update, you now have assembled the pieces you need to start programming in 650x Assembly language. Since my RetroChallenge is focused on the Commodore CBM II (“B Series”)...

Assembly language: the very name strikes fear into the hearts of retro-computing oriented nerds everywhere. “I used to program my (Atari|Commodore|TI99|Apple|ZX Spectrum) in BASIC, and I always meant to do something in Assembly, but… ”...